/* ============================================================
   广东尚好企业管理有限公司 — Site Redesign
   Aesthetic: 洁净工程图纸 / Blueprint Precision × 中式庄重
   Ink navy + warm paper + vermilion accent
   ============================================================ */

/* ---------- 0. Tokens ---------- */
:root{
  --ink:        #0d1e39;
  --ink-soft:   #1a3157;
  --ink-deep:   #071427;
  --paper:      #f6f4ee;
  --paper-warm: #fbfaf6;
  --white:      #ffffff;
  --verm:       #c2452c;
  --verm-lt:    #e0624a;
  --jade:       #12604c;
  --slate:      #5b6573;
  --slate-lt:   #8a929d;
  --line:       rgba(13,30,57,.13);
  --line-soft:  rgba(13,30,57,.07);

  --serif: "Noto Serif SC","Source Han Serif SC","Songti SC",STSong,"SimSun",serif;
  --sans:  "HarmonyOS Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:  "JetBrains Mono","SFMono-Regular",Menlo,Consolas,monospace;

  --pad: clamp(20px, 4.2vw, 56px);
  --maxw: 1240px;
  --r: 3px;                  /* 图纸感：小圆角 */
  --ease: cubic-bezier(.22,.8,.28,1);
}

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-soft);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;color:var(--ink);line-height:1.32;letter-spacing:-.01em}
p{margin:0 0 1em}

::selection{background:var(--verm);color:#fff}

.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--pad)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- 2. Texture / blueprint grid ---------- */
.grid-bg{
  background-image:
    linear-gradient(rgba(13,30,57,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13,30,57,.045) 1px, transparent 1px);
  background-size:28px 28px;
}
.grain::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.30;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
  mix-blend-mode:multiply;
}

/* ---------- 3. Utility bar ---------- */
.utilbar{
  background:var(--ink-deep);color:rgba(255,255,255,.62);
  font-size:12.5px;letter-spacing:.06em;
  position:relative;z-index:60;
}
.utilbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px;flex-wrap:wrap}
.utilbar .cities{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.utilbar .cities b{color:rgba(255,255,255,.92);font-weight:500}
.utilbar .dot{width:3px;height:3px;background:var(--verm);border-radius:50%;display:inline-block}
.utilbar .hot a{color:#fff;font-family:var(--mono);font-weight:500;letter-spacing:.02em}
.utilbar .hot a:hover{color:var(--verm-lt)}

/* ---------- 4. Header ---------- */
.site-head{
  position:sticky;top:0;z-index:55;
  background:rgba(251,250,246,.88);
  backdrop-filter:saturate(150%) blur(14px);
  -webkit-backdrop-filter:saturate(150%) blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .4s var(--ease), background .4s var(--ease);
}
.site-head.is-stuck{box-shadow:0 10px 34px -22px rgba(13,30,57,.42);background:rgba(251,250,246,.96)}
.head-in{display:flex;align-items:center;gap:18px;height:82px;flex-wrap:nowrap;transition:height .35s var(--ease)}
.site-head.is-stuck .head-in{height:66px}

.brand{display:flex;align-items:center;gap:13px;flex:0 0 auto}
.brand .mark{
  width:46px;height:46px;border-radius:var(--r);overflow:hidden;
  border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;flex:0 0 auto;
  transition:transform .4s var(--ease);
}
.brand:hover .mark{transform:rotate(-3deg)}
.brand .mark img{width:100%;height:100%;object-fit:contain}
.brand .txt strong{
  display:block;font-family:var(--serif);font-size:17.5px;font-weight:700;
  color:var(--ink);letter-spacing:.02em;line-height:1.25;
}
.brand .txt span{
  display:block;font-family:var(--mono);font-size:9.5px;letter-spacing:.22em;
  color:var(--slate-lt);text-transform:uppercase;margin-top:3px;
}

.nav{display:flex;align-items:center;gap:1px;margin-left:auto;flex:0 0 auto;white-space:nowrap}
.nav > li{position:relative}
.nav > li > a{
  display:block;padding:9px 11px;font-size:14px;color:var(--ink-soft);
  position:relative;transition:color .25s var(--ease);white-space:nowrap;
}
.nav > li > a::after{
  content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;
  background:var(--verm);transform:scaleX(0);transform-origin:left;
  transition:transform .32s var(--ease);
}
.nav > li > a:hover,.nav > li.on > a{color:var(--ink)}
.nav > li > a:hover::after,.nav > li.on > a::after{transform:scaleX(1)}

/* 服务项目 · 下拉 */
.nav > li.has-sub > a{padding-right:28px}
.nav .car{
  position:absolute;right:12px;top:calc(50% - 1px);width:5px;height:5px;
  border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;
  transform:translateY(-50%) rotate(45deg);opacity:.6;
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.nav > li.has-sub:hover .car,
.nav > li.has-sub:focus-within .car{transform:translateY(-20%) rotate(-135deg);opacity:1}

.sub{
  position:absolute;top:100%;left:50%;min-width:246px;
  transform:translate(-50%,10px);
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  box-shadow:0 30px 56px -30px rgba(13,30,57,.55),0 2px 8px -4px rgba(13,30,57,.14);
  padding:9px 0;margin:0;z-index:70;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s;
}
.sub::before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px}
.sub::after{
  content:"";position:absolute;top:-5px;left:50%;width:8px;height:8px;margin-left:-4px;
  background:#fff;border-left:1px solid var(--line);border-top:1px solid var(--line);
  transform:rotate(45deg);
}
.sub > li > a{
  display:block;padding:11px 22px;font-size:13.5px;color:var(--ink-soft);
  white-space:nowrap;position:relative;
  transition:color .22s var(--ease),background .22s var(--ease),padding-left .22s var(--ease);
}
.sub > li > a::before{
  content:"";position:absolute;left:11px;top:50%;width:4px;height:4px;margin-top:-2px;
  background:var(--verm);border-radius:50%;opacity:0;transform:scale(.4);
  transition:opacity .22s var(--ease),transform .22s var(--ease);
}
.sub > li > a:hover{background:var(--paper-warm);color:var(--verm);padding-left:28px}
.sub > li > a:hover::before{opacity:1;transform:scale(1)}
.sub > li.on > a{color:var(--verm);font-weight:600}
.sub > li.on > a::before{opacity:1;transform:scale(1)}
.nav > li.has-sub:hover > .sub,
.nav > li.has-sub:focus-within > .sub{
  opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);
}

.head-cta{display:flex;align-items:center;gap:14px;flex:0 0 auto;padding-left:18px;margin-left:6px;border-left:1px solid var(--line)}
.tel{
  font-family:var(--mono);font-size:19px;font-weight:600;color:var(--verm);
  letter-spacing:-.01em;line-height:1;white-space:nowrap;
}
.tel small{display:block;font-family:var(--sans);font-size:10.5px;color:var(--slate-lt);letter-spacing:.14em;margin-top:4px;font-weight:400}

.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 22px;font-size:14px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;border-radius:var(--r);cursor:pointer;
  transition:transform .28s var(--ease),background .28s var(--ease),color .28s var(--ease),box-shadow .28s var(--ease);
  position:relative;overflow:hidden;
}
.btn-primary{background:var(--verm);color:#fff;box-shadow:0 8px 22px -14px rgba(194,69,44,.9)}
.btn-primary:hover{background:var(--ink);transform:translateY(-2px);box-shadow:0 14px 30px -16px rgba(13,30,57,.9)}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:var(--verm);transform:translateY(-2px)}
.btn-ghost{border-color:rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.06)}
.btn-ghost:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-line{border-color:var(--line);color:var(--ink)}
.btn-line:hover{border-color:var(--ink);background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn .arw{transition:transform .3s var(--ease)}
.btn:hover .arw{transform:translateX(4px)}

.burger{display:none;width:44px;height:44px;border:1px solid var(--line);background:transparent;border-radius:var(--r);cursor:pointer;place-items:center;flex:0 0 auto}
.burger i{display:block;width:18px;height:1.5px;background:var(--ink);position:relative}
.burger i::before,.burger i::after{content:"";position:absolute;left:0;width:18px;height:1.5px;background:var(--ink);transition:transform .3s var(--ease)}
.burger i::before{top:-6px}.burger i::after{top:6px}
body.nav-open .burger i{background:transparent}
body.nav-open .burger i::before{transform:translateY(6px) rotate(45deg)}
body.nav-open .burger i::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 5. Hero ---------- */
.hero{position:relative;background:var(--ink-deep);color:#fff;overflow:hidden;isolation:isolate}
.hero .bgimg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.28;filter:grayscale(.35) contrast(1.05)}
.hero .veil{position:absolute;inset:0;background:
   radial-gradient(120% 90% at 78% 8%, rgba(194,69,44,.34), transparent 58%),
   linear-gradient(160deg, rgba(7,20,39,.96) 8%, rgba(13,30,57,.9) 48%, rgba(7,20,39,.97) 100%);}
.hero .grid-bg{position:absolute;inset:0;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);}
.hero-in{position:relative;z-index:2;padding:clamp(64px,9vw,118px) 0 clamp(48px,6vw,78px);max-width:960px}

.kicker{
  display:inline-flex;align-items:center;gap:11px;
  font-family:var(--mono);font-size:11px;letter-spacing:.26em;text-transform:uppercase;
  color:rgba(255,255,255,.72);margin-bottom:26px;
}
.kicker::before{content:"";width:34px;height:1px;background:var(--verm)}
.kicker.dark{color:var(--slate)}
.kicker.dark::before{background:var(--verm)}

.hero h1{
  font-size:clamp(32px,5.1vw,60px);color:#fff;font-weight:900;
  line-height:1.16;letter-spacing:-.02em;margin-bottom:22px;
}
.hero h1 em{font-style:normal;color:var(--verm-lt);position:relative;white-space:nowrap}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:.08em;height:.11em;
  background:rgba(224,98,74,.26);z-index:-1;
}
.hero .lead{font-size:clamp(15px,1.5vw,17.5px);color:rgba(255,255,255,.78);max-width:720px;line-height:1.95}
.hero .lead strong{color:#fff;font-weight:600}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}

.hero-stats{
  position:relative;z-index:2;
  border-top:1px solid rgba(255,255,255,.14);
  display:grid;grid-template-columns:repeat(4,1fr);
}
.hero-stats div{padding:26px 8px 30px;border-left:1px solid rgba(255,255,255,.1)}
.hero-stats div:first-child{border-left:0}
.hero-stats b{
  display:block;font-family:var(--serif);font-size:clamp(28px,3.4vw,42px);font-weight:700;
  color:#fff;line-height:1;letter-spacing:-.02em;
}
.hero-stats b i{font-style:normal;font-size:.5em;color:var(--verm-lt);margin-left:3px}
.hero-stats span{display:block;font-size:12.5px;color:rgba(255,255,255,.55);margin-top:9px;letter-spacing:.1em}

/* ---------- 6. Section shell ---------- */
section{padding:clamp(56px,7.5vw,104px) 0;position:relative}
.sec-head{margin-bottom:clamp(32px,4vw,52px);max-width:760px}
.sec-head .kicker{margin-bottom:16px}
.sec-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:800;letter-spacing:-.02em}
.sec-head h2 u{text-decoration:none;color:var(--verm)}
.sec-head p{margin-top:16px;color:var(--slate);font-size:15.5px}
.sec-head.row{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;max-width:none;flex-wrap:wrap}
.sec-head.row > div{max-width:660px}

.rule{height:1px;background:var(--line);margin:0}

/* ---------- 7. Services ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.svc{
  position:relative;background:var(--paper-warm);padding:0;overflow:hidden;
  display:block;transition:background .4s var(--ease);isolation:isolate;
}
.svc::before{
  content:"";position:absolute;inset:0;background:var(--ink);
  transform:translateY(101%);transition:transform .5s var(--ease);z-index:0;
}
.svc:hover::before{transform:translateY(0)}
.svc .thumb{position:relative;height:186px;overflow:hidden;background:var(--ink)}
.svc .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease),opacity .5s var(--ease)}
.svc:hover .thumb img{transform:scale(1.07)}
.svc .thumb .ph{
  position:absolute;inset:0;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--ink) 0%,#20406e 100%);
  color:rgba(255,255,255,.9);font-family:var(--serif);font-size:23px;font-weight:700;letter-spacing:.06em;
}
.svc .thumb .ph::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:22px 22px;
}
.svc .no{
  position:absolute;top:14px;left:16px;z-index:2;
  font-family:var(--mono);font-size:11px;letter-spacing:.1em;
  color:#fff;background:rgba(7,20,39,.62);backdrop-filter:blur(6px);
  padding:4px 9px;border-radius:2px;border:1px solid rgba(255,255,255,.18);
}
.svc .body{position:relative;z-index:1;padding:22px 24px 26px;transition:color .4s var(--ease)}
.svc .body h3{font-size:19px;margin-bottom:8px;transition:color .4s var(--ease)}
.svc .body p{font-size:13.5px;color:var(--slate);margin:0;transition:color .4s var(--ease);line-height:1.75}
.svc .body .go{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;
  font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--verm);transition:color .4s var(--ease),gap .3s var(--ease);
}
.svc:hover .body h3{color:#fff}
.svc:hover .body p{color:rgba(255,255,255,.7)}
.svc:hover .body .go{color:var(--verm-lt);gap:14px}

/* ---------- 8. Process ---------- */
.process{background:var(--ink);color:#fff;overflow:hidden}
.process .sec-head h2{color:#fff}
.process .sec-head p{color:rgba(255,255,255,.6)}
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:0;position:relative}
.steps::before{
  content:"";position:absolute;top:26px;left:4%;right:4%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22) 8%,rgba(255,255,255,.22) 92%,transparent);
}
.step{position:relative;padding:0 14px;text-align:left}
.step .pin{
  width:13px;height:13px;border-radius:50%;background:var(--ink);
  border:2px solid var(--verm-lt);margin:20px 0 26px;position:relative;z-index:2;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.step:hover .pin{transform:scale(1.5);box-shadow:0 0 0 6px rgba(194,69,44,.18)}
.step .n{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--verm-lt);display:block;margin-bottom:8px}
.step h4{font-family:var(--serif);font-size:17px;color:#fff;margin-bottom:8px;font-weight:700}
.step p{font-size:13px;color:rgba(255,255,255,.55);margin:0;line-height:1.8}

/* ---------- 9. Advantages ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.adv{background:var(--paper-warm);padding:32px 28px 34px;position:relative;transition:background .35s var(--ease)}
.adv:hover{background:#fff}
.adv .ic{
  width:52px;height:52px;border:1px solid var(--line);border-radius:var(--r);
  display:grid;place-items:center;margin-bottom:20px;background:#fff;
  transition:border-color .35s var(--ease),transform .35s var(--ease);
}
.adv:hover .ic{border-color:var(--verm);transform:translateY(-3px)}
.adv .ic svg{width:26px;height:26px;stroke:var(--verm);fill:none;stroke-width:1.5}
.adv .no{
  position:absolute;top:22px;right:24px;font-family:var(--mono);font-size:11px;
  letter-spacing:.1em;color:var(--slate-lt);
}
.adv h3{font-size:18.5px;margin-bottom:10px}
.adv p{font-size:13.5px;color:var(--slate);margin:0;line-height:1.85}

/* ---------- 10. Gallery ---------- */
.gal{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.gal figure{margin:0;position:relative;overflow:hidden;border-radius:var(--r);background:var(--ink);border:1px solid var(--line)}
.gal figure.w3{grid-column:span 3}
.gal figure.w2{grid-column:span 2}
.gal figure img{width:100%;height:100%;object-fit:cover;transition:transform .9s var(--ease),filter .6s var(--ease);filter:saturate(.92)}
.gal figure:hover img{transform:scale(1.06);filter:saturate(1.06)}
.gal figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:38px 18px 16px;
  background:linear-gradient(to top,rgba(7,20,39,.92),rgba(7,20,39,.55) 55%,transparent);
  color:#fff;transform:translateY(6px);transition:transform .45s var(--ease);
}
.gal figure:hover figcaption{transform:translateY(0)}
.gal figure b{display:block;font-family:var(--serif);font-size:15.5px;font-weight:700}
.gal figure span{
  display:block;font-size:12px;color:rgba(255,255,255,.68);margin-top:4px;line-height:1.6;
  opacity:0;max-height:0;overflow:hidden;transition:opacity .45s var(--ease),max-height .45s var(--ease);
}
.gal figure:hover span{opacity:1;max-height:90px}
@media (hover:none){
  .gal figure span{opacity:1;max-height:90px}
  .gal figure figcaption{transform:none}
}

/* ---------- 11. Cases ---------- */
.cases{border:1px solid var(--line);background:var(--paper-warm)}
.case-row{
  display:grid;grid-template-columns:70px 1fr auto;align-items:center;gap:20px;
  padding:18px 26px;border-bottom:1px solid var(--line-soft);
  transition:background .3s var(--ease),padding-left .3s var(--ease);
}
.case-row:last-child{border-bottom:0}
.case-row:hover{background:#fff;padding-left:34px}
.case-row .city{
  font-family:var(--serif);font-size:19px;font-weight:700;color:var(--ink);
  border-left:3px solid var(--verm);padding-left:12px;
}
.case-row .what{font-size:15px;color:var(--ink-soft)}
.case-row .yr{font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;color:var(--slate-lt)}
.cases-foot{padding:18px 26px;background:#fff;font-size:13.5px;color:var(--slate);border-top:1px solid var(--line)}
.cases-foot a{color:var(--verm);border-bottom:1px solid rgba(194,69,44,.35)}
.cases-foot a:hover{border-color:var(--verm)}

/* ---------- 12. CTA ---------- */
.cta-band{position:relative;background:var(--paper-warm);border:1px solid var(--line);overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(13,30,57,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(13,30,57,.05) 1px,transparent 1px);
  background-size:30px 30px;
}
.cta-band .in{position:relative;padding:clamp(38px,5vw,62px) clamp(24px,4vw,56px);display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(24px,3vw,36px);font-weight:800}
.cta-band p{color:var(--slate);margin:12px 0 0;font-size:15px}
.cta-band .acts{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .bigtel{
  font-family:var(--mono);font-size:clamp(26px,3.6vw,42px);font-weight:600;color:var(--verm);
  letter-spacing:-.02em;line-height:1;display:block;margin-bottom:6px;
}

/* ---------- 13. Footer ---------- */
.site-foot{background:var(--ink-deep);color:rgba(255,255,255,.6);padding:clamp(48px,6vw,76px) 0 0;font-size:14px;position:relative;overflow:hidden}
.site-foot .fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.site-foot h4{color:#fff;font-size:15px;margin-bottom:18px;font-family:var(--serif)}
.site-foot li{margin-bottom:11px;font-size:13.5px}
.site-foot li a{transition:color .25s var(--ease),padding-left .25s var(--ease)}
.site-foot li a:hover{color:var(--verm-lt);padding-left:5px}
.site-foot .fbrand .mark{width:52px;height:52px;border:1px solid rgba(255,255,255,.16);border-radius:var(--r);overflow:hidden;background:rgba(255,255,255,.05);display:grid;place-items:center;margin-bottom:18px}
.site-foot .fbrand strong{display:block;font-family:var(--serif);font-size:18px;color:#fff;margin-bottom:10px}
.site-foot .fbrand p{font-size:13px;line-height:1.9;color:rgba(255,255,255,.5);margin-bottom:16px}
.site-foot .fbrand .t{font-family:var(--mono);font-size:22px;color:#fff;letter-spacing:-.01em}
.fbot{border-top:1px solid rgba(255,255,255,.1);padding:22px 0 30px;font-size:12.5px;color:rgba(255,255,255,.4);display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}

/* ---------- 14. Mobile action bar ---------- */
.mbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  background:rgba(251,250,246,.96);backdrop-filter:blur(14px);
  border-top:1px solid var(--line);padding:9px var(--pad);
  gap:10px;
}
.mbar a{flex:1;text-align:center;padding:12px 8px;border-radius:var(--r);font-size:14px;font-weight:600}
.mbar a.m1{background:var(--verm);color:#fff}
.mbar a.m2{border:1px solid var(--line);color:var(--ink)}

/* ============================================================
   17. 内页内容层（栏目页 / 内容页通用）
   ============================================================ */
main.page{padding:0 0 clamp(48px,6vw,90px);background:var(--paper)}
main.page > .wrap{padding-top:clamp(30px,4vw,52px)}

.crumb{
  font-size:12.5px;color:var(--slate-lt);letter-spacing:.04em;margin-bottom:26px;
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.crumb a{color:var(--slate-lt);transition:color .25s var(--ease)}
.crumb a:hover{color:var(--verm)}
.crumb i{font-style:normal;color:var(--verm);font-family:var(--mono);font-size:11px}

/* 内页 Hero（沿用页面原有的内联背景图，统一压成墨蓝 + 蓝图网格） */
.hero[style]{position:relative;color:#fff;isolation:isolate;overflow:hidden;
  /* 内联 background 简写会把背景色重置为透明；如果背景图加载失败，
     白字会掉到浅色页面上。这里用 !important 兜一个深色底。 */
  background-color:var(--ink-deep) !important;}
.hero[style]::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);
  background-size:34px 34px;
}
.hero[style] > .wrap{position:relative;z-index:2;padding-top:clamp(52px,6.4vw,84px);padding-bottom:clamp(42px,5vw,64px)}
.hero[style] .page-title{margin:0;padding:0;border:0;max-width:920px}
.hero[style] .page-title h1{
  color:#fff;font-size:clamp(28px,4vw,46px);font-weight:800;
  text-shadow:0 2px 24px rgba(7,20,39,.55);
}
.hero[style] .page-title h1::after{background:var(--verm-lt);margin-top:16px}
.hero[style] .page-title p{
  color:rgba(255,255,255,.6);font-family:var(--mono);font-size:12px;
  letter-spacing:.16em;text-transform:uppercase;margin-top:14px;
}
.hero[style] .btns{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}
.hero[style] .btn-ghost{background:rgba(255,255,255,.08)}

/* 内页内容区按钮（提高优先级，避免被 main.page a 的链接色覆盖） */
main.page .btns{display:flex;gap:13px;flex-wrap:wrap;margin:26px 0}
main.page a.btn{border-bottom:0;text-decoration:none}
main.page a.btn-primary{color:#fff}
main.page a.btn-primary:hover{color:#fff}
main.page a.btn-ink{color:#fff}
main.page a.btn-ink:hover{color:#fff}
main.page a.btn-line{color:var(--ink)}
main.page a.btn-line:hover{color:#fff}

/* 深色 CTA 区块里的按钮 */
main.page .cta a.btn{color:#fff}
main.page .cta a.btn-line{border-color:rgba(255,255,255,.42);background:rgba(255,255,255,.06)}
main.page .cta a.btn-line:hover{border-color:#fff;background:#fff;color:var(--ink)}
main.page .cta a.btn-primary{border-color:transparent;color:#fff}
main.page .cta a.btn-primary:hover{background:var(--verm-lt);color:#fff}

.page-title{margin-bottom:clamp(28px,3.6vw,44px);padding-bottom:22px;border-bottom:1px solid var(--line)}
.page-title h1{
  font-size:clamp(26px,3.6vw,42px);font-weight:800;letter-spacing:-.02em;line-height:1.25;
  margin-bottom:14px;
}
.page-title h1::after{
  content:"";display:block;width:52px;height:3px;background:var(--verm);margin-top:18px;
}
.page-title p{font-size:15.5px;color:var(--slate);margin:0;max-width:820px;line-height:1.9}

/* 正文标题 */
main.page h2{
  font-size:clamp(21px,2.5vw,29px);font-weight:800;margin:clamp(38px,4.4vw,58px) 0 18px;
  padding-left:16px;border-left:4px solid var(--verm);letter-spacing:-.01em;
}
main.page h3{font-size:19px;font-weight:700;margin:30px 0 12px}
main.page h4{font-size:16px;font-weight:700;margin:22px 0 8px;color:var(--ink)}
main.page p{color:#43505f;margin-bottom:14px;line-height:1.95}
main.page a{color:var(--verm);border-bottom:1px solid rgba(194,69,44,.28);transition:border-color .25s var(--ease)}
main.page a:hover{border-color:var(--verm);text-decoration:none}
main.page strong{color:var(--ink);font-weight:600}

main.page ul,main.page ol{padding-left:0;margin:14px 0;list-style:none}
main.page li{
  position:relative;padding-left:22px;margin-bottom:10px;color:#43505f;line-height:1.9;
}
main.page ul > li::before{
  content:"";position:absolute;left:2px;top:.85em;width:6px;height:6px;
  background:var(--verm);border-radius:50%;
}
main.page ol{counter-reset:oli}
main.page ol > li{counter-increment:oli}
main.page ol > li::before{
  content:counter(oli,decimal-leading-zero);position:absolute;left:0;top:.15em;
  font-family:var(--mono);font-size:11px;color:var(--verm);letter-spacing:.06em;
}

/* 提示条（覆盖旧版内联样式） */
main.page .lead,main.page p[style*="background"]{
  background:var(--paper-warm) !important;
  border:1px solid var(--line) !important;
  border-left:3px solid var(--verm) !important;
  border-radius:0 var(--r) var(--r) 0;
  padding:18px 22px !important;font-size:15px;color:var(--ink) !important;
  line-height:1.9;margin:20px 0;
}
main.page p[style*="5a6169"],main.page p[style*="font-size:14px"]{
  color:var(--slate) !important;font-size:15px !important;
}

/* 卡片 / 网格 */
main.page .card{
  background:var(--paper-warm);border:1px solid var(--line);border-radius:var(--r);
  padding:24px 26px;margin-bottom:16px;transition:border-color .3s var(--ease),background .3s var(--ease);
}
main.page .card:hover{border-color:rgba(194,69,44,.35);background:#fff}
main.page .mini{
  background:var(--paper-warm);border:1px solid var(--line);border-radius:var(--r);
  padding:22px 24px;transition:border-color .3s var(--ease),transform .3s var(--ease);
}
main.page .mini:hover{border-color:rgba(194,69,44,.35);transform:translateY(-3px)}
main.page .mini b{display:block;font-family:var(--serif);font-size:17px;color:var(--ink);margin-bottom:8px}
main.page .mini span{font-size:13.5px;color:var(--slate);line-height:1.85;display:block}
main.page .grid{display:grid;gap:16px;margin:16px 0}
main.page .g2{grid-template-columns:1fr 1fr}
main.page .g3{grid-template-columns:repeat(3,1fr)}
main.page .g4{grid-template-columns:repeat(4,1fr)}

/* 表格 */
main.page table{
  width:100%;border-collapse:collapse;background:var(--paper-warm);font-size:14px;
  margin:18px 0;border:1px solid var(--line);
}
main.page th{
  background:var(--ink);color:#fff;padding:13px 16px;text-align:left;
  font-family:var(--serif);font-size:14px;font-weight:600;letter-spacing:.02em;
}
main.page td{padding:13px 16px;border-top:1px solid var(--line);color:#43505f;line-height:1.8}
main.page tbody tr:nth-child(even){background:rgba(13,30,57,.022)}
main.page tbody tr:hover{background:rgba(194,69,44,.05)}

/* 标签 */
main.page .tags{display:flex;flex-wrap:wrap;gap:9px;margin:16px 0}
main.page .tag{
  background:var(--paper-warm);border:1px solid var(--line);color:var(--ink-soft);
  padding:6px 14px;border-radius:2px;font-size:13px;transition:all .25s var(--ease);
}
main.page .tag:hover{border-color:var(--verm);color:var(--verm);background:#fff}

/* FAQ */
main.page .faq{border:1px solid var(--line);border-radius:var(--r);background:var(--paper-warm);margin:18px 0;overflow:hidden}
main.page .faq details{border-bottom:1px solid var(--line-soft)}
main.page .faq details:last-child{border-bottom:0}
main.page .faq summary{
  padding:16px 22px;font-family:var(--serif);font-weight:700;font-size:15.5px;
  color:var(--ink);cursor:pointer;list-style:none;position:relative;
  transition:background .25s var(--ease);
}
main.page .faq summary::-webkit-details-marker{display:none}
main.page .faq summary::after{
  content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);
  color:var(--verm);font-family:var(--mono);font-size:18px;
}
main.page .faq details[open] summary::after{content:"–"}
main.page .faq summary:hover{background:rgba(194,69,44,.05)}
main.page .faq .a{padding:0 22px 18px;font-size:14.5px;color:#43505f;line-height:1.95}

/* 内页 CTA */
main.page .cta{
  background:var(--ink);color:#fff;border:0;border-radius:var(--r);
  padding:clamp(28px,3.6vw,44px);margin:38px 0;text-align:center;position:relative;overflow:hidden;
}
main.page .cta::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:30px 30px;
}
main.page .cta > *{position:relative}
main.page .cta h3{color:#fff;font-size:clamp(20px,2.4vw,27px);margin-bottom:10px}
main.page .cta p{color:rgba(255,255,255,.72);margin-bottom:20px}

/* 内页图片 */
main.page figure{margin:0}
main.page figure img{border-radius:var(--r);border:1px solid var(--line)}
main.page figcaption{font-size:13px;color:var(--slate-lt);margin-top:8px;line-height:1.7}
main.page img{border-radius:var(--r)}
main.page mark{background:rgba(194,69,44,.12);color:var(--verm);padding:1px 5px;border-radius:2px}
main.page .updated,main.page .small{font-size:12.5px;color:var(--slate-lt)}

@media (max-width:900px){
  main.page .g2,main.page .g3,main.page .g4{grid-template-columns:1fr}
  main.page .grid{gap:12px}
}

/* ---------- 15. Reveal ---------- */
.rv{opacity:1;transform:none}
html.js .rv{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
html.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html.js .rv{opacity:1;transform:none;transition:none}}

/* ---------- 16. Responsive ---------- */
/* ---- 导航折叠：≤1200px 收进汉堡菜单 ---- */
@media (max-width:1200px){
  /* backdrop-filter 会让子元素的 position:fixed 相对头部定位，移动端关掉 */
  .site-head{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--paper-warm)}
  .brand,.head-cta,.burger{position:relative;z-index:2}
  .nav{display:none}
  .nav.open{
    display:block;position:fixed;top:0;left:0;right:0;z-index:1;
    height:100vh;height:100dvh;overflow-y:auto;
    background:var(--paper-warm);padding:118px var(--pad) 130px;
    white-space:normal;margin-left:0;border-top:0;
  }
  .nav.open > li > a{padding:15px 0;font-size:17px;border-bottom:1px solid var(--line-soft);font-family:var(--serif)}
  .nav.open > li > a::after{display:none}
  .nav.open > li.has-sub > a{padding-right:0}
  .nav.open .car{position:static;display:inline-block;margin:0 0 4px 10px;opacity:.45;transform:rotate(45deg)}
  .nav.open .sub{
    position:static;opacity:1;visibility:visible;pointer-events:auto;
    transform:none;min-width:0;padding:2px 0 10px 14px;
    background:transparent;border:0;box-shadow:none;
  }
  .nav.open .sub::before,.nav.open .sub::after{display:none}
  .nav.open .sub > li > a{padding:10px 0 10px 16px;font-size:15px;color:var(--slate);border-bottom:0}
  .nav.open .sub > li > a:hover{padding-left:22px;background:transparent;color:var(--verm)}
  .nav.open .sub > li > a::before{left:0;top:50%}
  .head-cta{margin-left:auto;border-left:0;padding-left:0}
  .burger{display:grid}
  body.nav-open{overflow:hidden}
}

@media (max-width:1080px){
  .svc-grid,.adv-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr);gap:34px 0}
  .steps::before{display:none}
  .gal figure.w3,.gal figure.w2{grid-column:span 3}
  .site-foot .fgrid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:760px){
  body{font-size:15.5px}
  .utilbar .cities{display:none}
  .utilbar .wrap{justify-content:center;min-height:34px}
  .brand .txt{display:none}
  .brand .mark{width:42px;height:42px}
  .head-cta{display:none}
  .head-in{height:62px;gap:12px}
  .site-head.is-stuck .head-in{height:56px}
  .nav.open{padding-top:96px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .hero-stats div{border-left:1px solid rgba(255,255,255,.1);border-top:1px solid rgba(255,255,255,.1)}
  .hero-stats div:nth-child(odd){border-left:0}
  .svc-grid,.adv-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  .gal{grid-template-columns:1fr}
  .gal figure.w3,.gal figure.w2{grid-column:span 1}
  .case-row{grid-template-columns:56px 1fr;gap:12px;padding:16px 18px}
  .case-row .yr{display:none}
  .site-foot .fgrid{grid-template-columns:1fr}
  .mbar{display:flex}
  body{padding-bottom:64px}
  .tel{font-size:16px}
  .brand .txt span{display:none}
}